z_msgwin.cpp

zinc60t22.tar.gz:zinc在tornado2.2.x下的补丁

//	Zinc Application Framework - Z_MSGWIN.CPP
//  Copyright (c) 1990-1998 Zinc Software, Inc.
//  Copyright (c) 1999-2003 Wind River Systems, Inc.

/*
modification history
--------------------
01h,19jun03,jlb  Fix SPR 72148 - Window does not resize for text
01g,19jul01,wdf  Worked around bug (SPR #69147) in the StrongArm compiler.
01f,07may01,wdf  Changed copyright date.
01e,23oct00,wdf  Changed copyright date.
01d,24feb00,wdf  Added code to Event() function to call event listeners.
01c,07dec99,jom  Fix SPR 29617
01b,21sep99,bbj  Interop--switch to EventManager(), WindowManager() accessors
01a,27jul99,wdf  Eliminated commented and redundent code, unnecassary
                 functions and #defines
*/

#include <zinc/z_app.hpp>
#include <zinc/z_msgwin.hpp>
#include <zinc/z_stdarg.hpp>
#include <zinc/z_border.hpp>
#include <zinc/z_sys.hpp>
#include <zinc/z_icon1.hpp>
#include <zinc/z_text.hpp>
#include <zinc/z_title.hpp>
#include <zinc/z_string.hpp>
#include <zinc/z_utils.hpp>
#define ZAF_MESSAGE_WINDOW_INFO
#include <zinc/data/lang_def.hpp>
#include <zinc/data/gbl_def.hpp>

// ----- ZafMessageWindow ---------------------------------------------------

#if defined(ZAF_INDEPENDENT)
static ZafPaletteMap ZAF_FARDATA textFieldPaletteMap[] =
{
	{ ZAF_PM_ANY_TYPE, ZAF_PM_ANY_STATE, { ZAF_LINE_SOLID, ZAF_PTN_SOLID_FILL, ZAF_CLR_BLACK, ZAF_CLR_LIGHTGRAY, ZAF_MONO_WHITE, ZAF_MONO_BLACK, ZAF_FNT_DIALOG } }
};
#endif

ZafMessageWindow::ZafMessageWindow(ZafStringData *zTitle,
	ZafIconImage zIconImage, ZafDialogFlags zMsgFlags,
	ZafDialogFlags zDefFlag, const ZafIChar *format, ...) :
	ZafDialogWindow(0, 0, 0, 0),
	msgFlags(0), defFlag(0), iconImage(zIconImage),
	icon(ZAF_NULLP(ZafIcon)), textField(ZAF_NULLP(ZafText)),
	title(ZAF_NULLP(ZafTitle)), firstButton(ZAF_NULLP(ZafButton))
{
	destroyable = false;
	sizeable = false;

	// Get message strings.
	messages = ZafLanguageManager::Allocate(className, defaultMessages);

	// Get the formatted text.
	ZafIChar *text = new ZafIChar[1024];
	va_list arguments;
	va_start(arguments, format);
	ZafStandardArg::vsprintf(text, format, &arguments);
	va_end(arguments);

	SetMessageFlags(zMsgFlags);
	SetDefaultMessageFlag(zDefFlag);

    // Use the %s format argument in case the text has %'s in it; otherwise
    // it would crash when SetMessage() tries to find corresponding arguments.
    SetMessage(ZAF_ITEXT("%s"), text);
    if (zTitle)
        title = new ZafTitle(zTitle);
    else
        title = new ZafTitle(new ZafStringData(*zTitle));
    SetIconImage(iconImage);

	delete []text;
}

ZafMessageWindow::ZafMessageWindow(const ZafIChar *zTitle,
	ZafIconImage zIconImage, ZafDialogFlags zMsgFlags,
	ZafDialogFlags zDefFlag, const ZafIChar *format, ...) :
	ZafDialogWindow(0, 0, 0, 0),
	msgFlags(0), defFlag(0), iconImage(zIconImage),
	icon(ZAF_NULLP(ZafIcon)), textField(ZAF_NULLP(ZafText)),
	title(ZAF_NULLP(ZafTitle)), firstButton(ZAF_NULLP(ZafButton))
{
	SetDestroyable(false);
	SetSizeable(false);

	// Get message strings.
	messages = ZafLanguageManager::Allocate(className, defaultMessages);

	// Get the formatted text.
	ZafIChar *text = new ZafIChar[1024];
	va_list arguments;
	va_start(arguments, format);
	ZafStandardArg::vsprintf(text, format, &arguments);
	va_end(arguments);

	SetMessageFlags(zMsgFlags);
	SetDefaultMessageFlag(zDefFlag);

	// Use the %s format argument in case the text has %'s in it; otherwise
	// it would crash when SetMessage() tries to find corresponding arguments.
	SetMessage(ZAF_ITEXT("%s"), text);
	title = new ZafTitle(new ZafStringData(zTitle));
	SetIconImage(iconImage);

	delete []text;
}

ZafMessageWindow::ZafMessageWindow(ZafStringData *zTitle,
	ZafIconImage zIconImage, ZafDialogFlags zMsgFlags,
	ZafDialogFlags zDefFlag, ZafUInt16 bufferSize, const ZafIChar *format, ...) :
	ZafDialogWindow(0, 0, 0, 0),
	msgFlags(0), defFlag(0), iconImage(zIconImage),
	icon(ZAF_NULLP(ZafIcon)), textField(ZAF_NULLP(ZafText)),
	title(ZAF_NULLP(ZafTitle)), firstButton(ZAF_NULLP(ZafButton))
{
	SetDestroyable(false);
	SetSizeable(false);

	// Get message strings.
	messages = ZafLanguageManager::Allocate(className, defaultMessages);

	// Get the formatted text.
	ZafIChar *text = new ZafIChar[bufferSize];
	va_list arguments;
	va_start(arguments, format);
	ZafStandardArg::vsprintf(text, format, &arguments);
	va_end(arguments);

	SetMessageFlags(zMsgFlags);
	SetDefaultMessageFlag(zDefFlag);

    // Use the %s format argument in case the text has %'s in it; otherwise
    // it would crash when SetMessage() tries to find corresponding arguments.
    SetMessage(bufferSize, ZAF_ITEXT("%s"), text);
    if (zTitle)
        title = new ZafTitle(zTitle);
    else
        title = new ZafTitle(new ZafStringData(*zTitle));
    SetIconImage(iconImage);

    delete []text;
}

ZafMessageWindow::ZafMessageWindow(const ZafMessageWindow &copy) :
	ZafDialogWindow(copy),
	msgFlags(0), defFlag(0), iconImage(0),
	icon(ZAF_NULLP(ZafIcon)), textField(ZAF_NULLP(ZafText)),
	title(ZAF_NULLP(ZafTitle)),
	firstButton(ZAF_NULLP(ZafButton))
{
	// Get message strings.
	messages = ZafLanguageManager::Allocate(className, defaultMessages);

	SetDefaultButton(ZAF_NULLP(ZafButton));
	Destroy();

	SetMessageFlags(copy.msgFlags);
	SetDefaultMessageFlag(copy.defFlag);

	// Use the %s format argument in case the text has %'s in it; otherwise
	// it would crash when SetMessage() tries to find corresponding arguments.
	if (copy.textField)
		SetMessage(ZAF_ITEXT("%s"), copy.textField->Text());
	else
		SetMessage(ZAF_NULLP(ZafIChar));
	SetIconImage(copy.iconImage);
}

ZafMessageWindow::~ZafMessageWindow(void)
{
	// Free the language information.
	ZafLanguageManager::Free(messages);

	// If the title was created but never added (because the message window
	// was never added to the window manager) delete the title.
	if (title && !title->parent)
		delete title;

	// If the textField was created but never added (because the message window
	// was never added to the window manager) delete the textField.
	if (textField && !textField->parent)
		delete textField;
}

void ZafMessageWindow::AddFields(void)
{
	// Remove any button fields in case some flags were removed.
	if (firstButton)
		SetDefaultButton(ZAF_NULLP(ZafButton));
	ZafWindowObject *object = firstButton;
	while (object)
	{
		ZafWindowObject *nextObject = object->Next();
		Subtract(object);
		delete object;
		object = nextObject;
	}

	firstButton = ZAF_NULLP(ZafButton);

	// Add border.
	if (!Border())
		Add(new ZafBorder);

	// Add the title and system button (if specified).
	if (title && !Title())
	{
		Add(new ZafSystemButton(ZAF_NATIVE_SYSTEM_BUTTON));
		Add(title);
	}

	// Add the icon (if applicable).
	// NOTE: ZAF_APPLICATION_ICON is 0 (the first in the icon array), so it may
	// not be used in this constructor, since iconImage is an unsigned value.
	if (iconImage)
	{
		if (icon)
		{
			Subtract(icon);
			delete icon;
		}

		icon = new ZafIcon(2, 1, ZAF_NULLP(ZafStringData));
		icon->SetIconImage(iconImage);
		icon->SetBordered(false);
		icon->SetNoncurrent(true);
		Add(icon);
	}

	if (textField)
		Add(textField);

	// Add the buttons.
	int index = 0;
	ZafDialogFlags testFlag = 1;
	do
	{
		if (msgFlags & testFlag)
		{
			ZafIChar hotKeyChar = '\0';
			int hotKeyIndex = -1;
			ZafButton *button = new ZafButton(0, 0, 0, 0,
				messages->GetMessage((ZafNumberID)testFlag, false, &hotKeyChar, &hotKeyIndex),
				ZAF_NULLP(ZafBitmapData), ZAF_NATIVE_BUTTON);
			button->SetAllowDefault(true);
			button->SetAutoSize(true);
			button->SetHotKey(hotKeyChar, hotKeyIndex);
			button->SetSendMessageWhenSelected(true);
			button->SetValue(testFlag == ZAF_DIALOG_HELP ? S_HELP : S_DIALOG_FIRST + index);
			Add(button);
			if (testFlag == defFlag)
				SetDefaultButton(button);
			if (!firstButton)
				firstButton = button;
			if (testFlag == defFlag)
				current = button;
		}
		index++;
		testFlag <<= 1;
	} while (testFlag);
}

ZafDialogFlags ZafMessageWindow::ClearMessageFlags(ZafDialogFlags zMsgFlags)
{
	if (!screenID)
		msgFlags &= (ZafUInt16)~zMsgFlags;

	return (msgFlags);
}

ZafWindowObject *ZafMessageWindow::Duplicate(void)
{
	return (new ZafMessageWindow(*this));
}

ZafEventType ZafMessageWindow::Event(const ZafEventStruct &event)
{
	// Check for zinc events.
	ZafEventType ccode = event.type;
	
	// Initialize the autoListener.  This will call any preprocessing listeners providing 
    // listenerStackCount = 1. When it is destroyed any postprocessing listeners will be
    // called if the listenerStackCount = 1.
    ZafAutoListener autoListener(this, event, ccode);

    // If an event listener processed the event and the library should do nothing with it return.
    if (event.processed)
        return (ccode);

    switch (ccode)
	{
	case S_INITIALIZE:
		AddFields();
		ZafDialogWindow::Event(event);
		break;

	case S_COMPUTE_SIZE:
#if	defined(ZAF_INDEPENDENT)
		// If oldRegion == -10000 it means the window is just getting initialized
		// so compute the size of the children and center the window. 
		if (oldRegion.left == -10000 && oldRegion.top == -10000 &&
		 oldRegion.right == -10000 && oldRegion.bottom == -10000)
#endif
		{
		// Compute the text size.
		int textHeight = 0;
		int textWidth = 0;
		if (textField)
		{
			const ZafIChar *text = textField->Text();

			// Initialize the display so that accurate text sizes can be obtained.
			BeginDraw();
			display->SetPalette(textField->LogicalPalette(ZAF_PM_TEXT, PaletteState()));

#			if defined(ZAF_MOTIF)
			ZafRegionStruct textSize = display->TextSize(text);
			textHeight = textSize.Height() + 2 * ZAF_BORDER_SIZE + 1;
			textWidth = textSize.Width() + 2 * ZAF_MARGIN_SIZE + 1;
#			else
			int index = 0;
			int lineHeight = display->TextSize(ZAF_ITEXT("Mg")).Height();
			const ZafIChar *linePtr = text;
			do
			{
				if (text[index] == '\n' || text[index] == '\r' || text[index] == '\0')
				{
					int isCR = (text[index] == '\r');
					ZafIChar saveChar = text[index];
					textField->StringData()->SetChar(index, '\0');

					ZafRegionStruct textSize = display->TextSize(linePtr);
					textHeight += lineHeight;
#					if defined(ZAF_MSWINDOWS)
					textHeight++;
#					endif
					if (textSize.Width() > textWidth)
						textWidth = textSize.Width();

					textField->StringData()->SetChar(index, saveChar);
					if (isCR && text[index + 1] == '\n')
						index++;
					linePtr = text + index + 1;
				}
			} while (text[index++] != '\0');
#			endif

			// Restore the display.
			EndDraw();
		}

		// Add a few pixels to allow for margins;
		textWidth += 2 * ZAF_MARGIN_SIZE;
		textHeight += 2 * ZAF_MARGIN_SIZE;

		// Compute the size and number of buttons.
		int buttons = 0;
		int maxTextSize = 0;